19778486

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 36886080

約数和(自身を除く): 17107594

約数列:

[1, 2, 7, 13, 14, 26, 91, 109, 182, 218, 763, 997, 1417, 1526, 1994, 2834, 6979, 9919, 12961, 13958, 19838, 25922, 90727, 108673, 181454, 217346, 760711, 1412749, 1521422, 2825498, 9889243, 19778486]

約数ペア:

[(1, 19778486), (2, 9889243), (7, 2825498), (13, 1521422), (14, 1412749), (26, 760711), (91, 217346), (109, 181454), (182, 108673), (218, 90727), (763, 25922), (997, 19838), (1417, 13958), (1526, 12961), (1994, 9919), (2834, 6979)]